8245720

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{601}}^1$

素因数の和:633

約数の個数: 64

約数和(自身を含む): 21672000

約数和(自身を除く): 13426280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 601, 686, 980, 1202, 1372, 1715, 1960, 2404, 2744, 3005, 3430, 4207, 4808, 6010, 6860, 8414, 12020, 13720, 16828, 21035, 24040, 29449, 33656, 42070, 58898, 84140, 117796, 147245, 168280, 206143, 235592, 294490, 412286, 588980, 824572, 1030715, 1177960, 1649144, 2061430, 4122860, 8245720]

約数ペア:

[(1, 8245720), (2, 4122860), (4, 2061430), (5, 1649144), (7, 1177960), (8, 1030715), (10, 824572), (14, 588980), (20, 412286), (28, 294490), (35, 235592), (40, 206143), (49, 168280), (56, 147245), (70, 117796), (98, 84140), (140, 58898), (196, 42070), (245, 33656), (280, 29449), (343, 24040), (392, 21035), (490, 16828), (601, 13720), (686, 12020), (980, 8414), (1202, 6860), (1372, 6010), (1715, 4808), (1960, 4207), (2404, 3430), (2744, 3005)]